Work guiding means



Nov. 24, 1931. c. L'ENFANT WORK GUIDING MEANS Filed Sept. 28, 1929 andsaid attachmentalso having m6ans ad 9 of my prsent invention, ,and inwhich simknown type of margin or edge gluing ma- Patented Nov. 24, 1931UNITED STATES PATENT OFFICE '.%ApplicationfllSeptember 28, 1929. ScrialNo. 395,983.

the work-gniding ledge or shelf of the matchine;

Fig. 3 is a transverse' sectional view taken on the line-33of Fig. 2,and

Fig. 4: is a perspective view showing a slightly modified'form of theattachment.

7 In Fig. 1 of the drawings, I have shown a machine of the kind which isgenerally used for the purposeof applying glue or other adhesive to themarginal edges of relatively stif sheets f cardboard used for thepurpose of reinf0reing flexible leather walls or fabric lining sheets01:. billf0lds, purses, card cases, andarticles of similar character. Asshowh, this machineis provided with aglue pan indicated at 5 in one, endof which, the lower portion of a rotatably mounted glue apply- ,ing diseor wheel 6 is immersed. This dise is.Operated through the medium ofsuitable gearing-rom the motor indicated.aty 7 which also o.peratesthetwo pressnrerolls shown at 8 arranged above the diseon wheel 6 in the-pla methereof and suitably snacedfrom its periphery/ This machine attherear side. of.the pan 5, is also providedwith a horizontall v extendingguide ledge or shelf ofangular form in cross sectionhaving the horizon-This invention relates .to .Workguiding means, and has foritsfprimaryObjectand purpose t0, providea very,simple device for accurately guidingthe .WQrk sothata detinitely limited part thereof wilL be. properlyoperated uponby the-machine.

It isa-nore-- particular objectflof the invention to provide s uchwork-guiding mans particularly designed -forjuse in connection with glueapplying machines. for the purpose of applying gle Qrflotheradhcsive tothe marginal .edgsof flexible materials, ;such as the cloth orl'eathenparts used. inthe: manufactureof billfol ds, oarjchcasesflandother manufacturedartiles 4 It is an additionalobjegfi,ofthe inventionto providesuch woik-gflidiD, mea ns in the form., of an attachment whihmayj be ineX pensively produced .from.:a single sheet of, metal and .isProvided'with meansfordetahable engagement;with a partflof theguide"rail or shelf of a standard type of gh 1ingmachine heretoforecapable ofuse or'xly ngconnetion With substantiallyrigid sheetsofgmaterial,

jacent to the glue applying roll r whih Will efi'ectively preventbuckling or fleXingjof the, marginal edge of the: sheetv of material asit tal fiange 9 and the vertical fiange 10extendis fed to the machine fing mawztrdly from the rear edge of thehori- With the above and otherobjectsin.view, zontal flansre. The flange 9 is -nrovided on the inv ntin COIlsists in the improv d w kits nnder side With a sleeve-ll adaptedto be guiding means, andin the form,construction fitted ,unon a shaft 12and removably fixed and relative arrangement-- of its sveral partsthereto b 'th set screw 13. fl WII b h reina orey n y desrbed, Themachineab0vfle desribed is quite sat sillustrated in the accompanying.lmlwingS,- ,factorywhen used for the, pnrpose of applyand, sbsequeHflyinc polate 'i he ubingglue to the edges, of such stif materialsjoinedclaims. V j ascardboard, the cardbonrd sheet beinsz posi- In h WngS,.W e Q Lh YQdi Q Q edtioned on t;hefirige 9 with its edqeabuttingseveral simple and practical' embodiments' ap;ainst the face f th ti lfiange 10 go that as the sheet is moved along the guide shli, tsmarginal edge portion Will beaccurately ,quided and directed between thepressure rollers 8 and the glue apnlying rollers 6. .Of Course, when thesheet is again moved over;said guide shelf. to apply the glue to.another ed9:e thereof. the collection of a V portion of the ,qlue whichwas previously ap' Fig. 2 is an ,enlarged detail -perspective pled to anedge of'the sheet unon the upner view illustranq one mbodiment of myinsurface of the flange9 isunavoidahle.- and it vention and showing the.am 1 apphed t0"is n'ecessary for the operatOr tofreqnently ilarreference characters designate corresponding parts throughont theseveral views,- Y

Figure 1 is a persnective"view of a well chine illustrating the mannerand use of'my invention;

ing in increased production and lower manufacturing cost of the billfoldor other article.

To this end thereof. the invention consists essentially in awork-quiding attachment which may be removably applied to the fixedguide ledge or shelf of sueh a machine. As

. seen in Fig. 2 of the drawings, the atta hmcnt consists of a strip ofsheet metal 14 of substantially the same width as the width of the shelf(lange 9, said shcet metal strip being of sufiiciently greater lengththan said fiange wherebv the ends of the strip 14 may be inwardly bentas at- 15 to provide clampinp; hooks engaging over the ends of theflange 9 and a2ainst the under side of said flanqe to thereby detachablyhold the strip 14 in superimnosedrelation upon the upper surface of saidfiange 9.

The sheet metal strin 14 adjacent one of its ends has a part 16integrally f0rmed upon one edoe of the strin and. extendinglongitudinallv thercof. This part is bent inward ly and downwardly insubstantiallv parallel relation to the upner face of the strip 14 andcloselv adjacent thereto to thereby provide a guiding fian.qe on saidsheet metal strip co tiguous to the gluingx roller or dise 6.

In the use of the device above descbed, the maro:inal ed;re portion ofthe flexible leather or fabrie work piece is placed by the operator uponthe upper surface of the strip 14 With the ed9e thereof extending underthe flanae 16. and in bearing contact with the loend in the metal sheetat the juneture of sa d fianae W th the edge of the strip 14. T hisflan9:e therebv effeetuallv prevents the extreme edsre portion of thefabrie or leather sheet from bu ckling or turniny: upwardly, as thesheet is moved beneath said flange and advanced hetween the gluing diseand the pressure dises 8. Thus, as the sheet is fed between the dises,the glue or other adhesive will be accurately and preeisely applied tothe predetermined limited marginal edge portion of the under side ofsaid sheet. If the adhesive is also to be applied to other edges of thesheet, this operation above deseribed is repeated. Of course, a certainamount of the glue previously applied to the marginal edaes of the sheetwill be taken of and collected on the upper surface of the sheet metalstrip 14. However, by keeping a number of these attachments on hand,aftcr a certain period of use of one attachment, it may be readilvremoved from the fiange 9 of the supporting ledge or shelf, and immersedin a suitable cleaning solution, and

another clean guiding attachment substitut ed in its place.

In Fig. 4 of the drawings, I have shown an alternative embodiment of thedevice, in which the sheet metal strip 14 is not provided With theattaching hooks 15 at its ends but adjacent one end thereof and on itsrear edgc is provided with the upstanding flange 17 having its upperedge outwardly and downwardly turned as at 18 to provide an attachinglip or hook engaging over the upper edge of the vertical flange 10 ofthe work supporting shelf and bearing against the rear face ofsaid'flange. The fiange 17 has a part 18 and 19 nressed outwardlvtherefrom and downwardly into close parallel re lation to the uppersurface of the strip 14. A relativelv narrow flange 20 also extendslongitudinally from the inner end of the flange 17 along the rear edgeof the strip 14' to the other end of said strin, the said flauge bearingclosely against the face of the flau9;e 10 of the supporting shelf.However, if desired this narrow vertical flanae 20 may he omitted. Theoneration of this form of the attachment is the same as that abovedescrib d. and as the marginal edge portion of the flex ble material ismoved over the surface of the strip 14. as it annroaehes the gluing diseor roller. it is confined closelv by the part 19 of the strip so as tonrevcnt flexin,q or buckling of the edge of the sheet.

From the foregoing description considered in connection with theaccompanving drawing, the construction. manner of use and sevoraladvantages of the described embodimente of mv invention Will be clearlvunderstood. It Will he seen that the device is exceedingly simple. ma vbe nroduced at verv low cost, and is a valuable aceessory for suchgluing machines, since it enables the same to operate with equalaccuracy and facilit upon either stiif or flexible materials. therebynereasing the utilitv of the machine.

Wh le I have herein disclosed several simple and practical embo imentsof mv improved attachment, it Will nevertheless ho understood that thedevice may also be produced in various other alternative forma, and Itherefore, reserve the privilege of resorting to all such legitimatechanges there n as may be fairly embodied within the spirit and scope ofthe invention as claimed.

I claiin:

1. In eombination with a machine having a work suvporting shelf andmeans at one end of said shelf to onerate upon the work, a work guidingattachment eonsisting of a member provided with menus coopcrating withthe shelf to detaehablv retain said attaehment in fixed relation thercto. and said attachment also including means for guiding the marginaledge portion of a flexible sheet of material and preventing buckling orflexing of the edge of said material as it is fed to the work engagingmeans of the machine.

2. In combination with amachine having a work supporting shelf and workengaging rneans at one end of said shelf, a work-guiding attachmentconsisting of a sheet metal plate adapted to be superimposed upon saidshelf and having means for detachably retaining said attachment in fixedrelation to the shelf, and said sheet metal plate being provided at oneedge thereof with a guiding flange extending over the surface of saidplate in close parallel relation thereto to guide the marginal edge of aflexible sheet of material movable between said plate and the flange andprevent fiexing or buckling of the edge of said sheet as it is fed tothe Workengaging means of the machine.

3. In combination with a machine having a work supporting shelf and workengaging means at one end of said shelf, a WOrk-guiding attachmentconsisting of a sheet metal plaie adapted to be superimposed upon saidshelf, said plate having a bent portion forming3: an attaching hook t0releasably engage a wall of said sl1elf and detachably retain theattachment in fixed relation thereto. and said sheet metal plate beingfurther provided with a longitudinally extending flange integral withone edge of said plate and bent inwardly and clownwardly in spacedparallel relation to the upper surface of said plate whereby themarginal edge of a sheet of flexible material is movably confinedbetween said flange and the plate and prevented from flexing or bucklingas said sheet is fed to the work engaging means of the machine.

4. In combiuation with a machine having a work supporting shelf and workengaging means at one end of said shelf, a work guidinq attachmentconsisting of a sheet metal plate adapted to be superimposed upon saidshelf. said sheet metal plate extending the entire length of the worksupporting shelf and having inwardly turned hooks at its opposite endsengaging under the ends of the sheli wall to detachably retain saidplate in fixed relation to the shelf, and said plate adiacent one endthereof having a fiange integ rally formed with one of its longitudinaledoes extending along the same in close parallel relation with the uppersurface of said plate t0 movably confine the marginal edge of a flexiblesheet of material between said flan e and the plate and prevent flexingor buckling of the edge of the sheet as it is fed to the work engagingmeans of the machine.

5. A work supporting and guiding device comprising a sheet metal plateadapted to be superimposed upon a fixed support and having an integrallyformed part t0 coact with the support and detachably retain said platein its applied position thereon, and a work guiding fiange projectinginwardly from one longitudinal edge of said plate in closely spacedparallel relation to the surface of the plate to confine the edge of aflexible work sheet upon said surface and prevent flexing or bucklingthereof.

6. A work supporting and guiding device comprising a sheet metal plateadapted to be superimposed upon a fixed support, said plate having anupstanding flange along one of its longitudinal edges constituting anabutment for one edge of a flexible work sheet positioned on said plate,said flange at one end of the plate having a part struck outwardlytherefrom and overlying the upper surface of said plate in closelyspaced parallel relation thereto t0 confine the edge of the work sheetupon said plate and prevent flexing or buckling thereof, and saidupstanding flange being further provided with means to releasably engagea part of the fixed support and detachably retain the sheet metal platethereon.

In testimon that I claim the foregoing as my invention, I have signed myname hereto.

CHARLES LENFANT.

